.AddGuest {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    text-align: center;
    height: 40px;
    line-height: 40px;
}

.AddGuest a {
    display: block;
    background: blue;
    color: #fff;
    font-size: 20px;
}
